Paris-based studio XTU Architects recently unveiled designs for a futuristic high-rise in Hangzhou that blends sustainable technologies into an organic, sculptural design. Cloaked in a “bio facade” of micro algae -covered panels, the curvaceous towers can produce oxygen and absorb carbon dioxide. Dubbed French Dream Towers, the mixed-use complex would also incorporate rainwater harvesting, a greenhouse, and an aquaponics system. Currently under review, French Dream Towers comprises four buildings clustered around a central water body. The towers feature sloped facades that give the project its organic shape and help facilitate rainwater collection . The mixed-use complex includes a French Tech Hub with offices and co-working spaces; an Art Center comprising galleries, artist residences, and market space; a hotel with wellness facilities; and a luxury restaurant with French fusion cuisine and a bar. Related: Incredible Algae Dome absorbs sun and CO2 to produce superfood and oxygen “The culture of micro-algae on the building facade is a process developed by XTU for several years,” said the architects of their patent-pending micro-algae panels. “It allows the symbiosis: the bio facade uses the thermal building to regulate the culture temperature of algae and at the same time these facades allow a much better insulation of buildings.” + XTU Architects Via Dezeen Images via XTU Architects

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Foster + Partners has moved one step closer to bringing to life the new Indian state capital of Amaravati—a city that’s projected to be “one of the most sustainable in the world.” The city will form the new administrative capital of the South Indian state of Andhra Pradesh, which transferred its former capital of Hyderabad to the state of Telangana when state boundaries were redrawn in 2014. The acclaimed British architecture firm won an international competition to design the 83-square-mile city as well as key administrative buildings. Now in the design development phase, the Amaravati masterplan builds on Foster + Partners’ decades-long research on sustainable cities . The new city is located on the banks of the River Krishna and will be organized along a clearly defined green spine and a strong urban grid. The 550-hectare government complex will occupy the heart of the city and will feature two key buildings—the Legislature Assembly and High Court Complex—also designed by Foster + Partners. Related: Foster + Partners’ DJI HQ will be a “creative community in the sky” According to a project statement, the city will be designed to “the highest standards of sustainability, including the widespread use of solar energy.” At least 60-percent of the masterplan will be occupied by greenery or water in a pedestrian-friendly layout that encourages people to walk through the city. A comprehensive transportation plan will also include electric vehicles, water taxis, and dedicated cycling paths. A mixed-use quarter south of the riverbank will be organized around 13 urban plazas in a nod to the 13 state districts in Andhra Pradesh. + Foster + Partners Images via Foster + Partners